Cadmium and zinc thiolate and selenolate metal–organic frameworks

Turner, Dayna L.; Stone, Kevin H.; Stephens, Peter W.; Vaid, Thomas P.

doi:10.1039/b926156g

Cited by 23 publications

(12 citation statements)

References 28 publications

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“…[18] Additionally, aryl selenoacetates have been recently found to be promising precursors for metal-organic frameworks (MOFs). [19] Aryl selenoacetates are generally obtained from reacting acetyl chloride (AcCl) with selenols and their derivatives. [18,20] To replace the Cy 3 Si group by the acetyl group, we treated the reaction mixture obtained with 4-bromobiphenyl as starting material first with tetra-n-butyl-A C H T U N G T R E N N U N G ammonium fluoride (TBAF) in THF, followed by freshly distilled acetyl chloride.…”

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confidence: 99%

Catalytic CSe Bond Formation under Very Mild Conditions for the Two‐Step, One‐Pot Synthesis of Aryl Selenoacetates

et al. 2012

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Using the palladium/2-(dicyclohexylphosphino)-2',6'-di(isopropoxy)biphenyl (RuPhos) catalyst, aryl halides and tricyclohexylsilyl selenol can be efficiently coupled to the respective aryl tricyclohexylsilyl selenides. These can be transformed in the same reaction vessel to the corresponding selenoacetates, permitting a straightforward access to a range of molecules potentially useful for materials science applications.

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confidence: 99%

Catalytic CSe Bond Formation under Very Mild Conditions for the Two‐Step, One‐Pot Synthesis of Aryl Selenoacetates

et al. 2012

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“…have shown how sulfur can be used as an organic linking unit in Pb‐based networks as well as Zn and Cd MOFs . A 2D fragment of one particular Cd MOF is shown in Figure . The Cd MOFs described, although not semiconducting, show a proof of concept of the synthesis of sulfur‐bridged MOFs.…”

Section: Methodsmentioning

confidence: 94%

“…Groundwork by Turner et al. have shown how sulfur can be used as an organic linking unit in Pb‐based networks as well as Zn and Cd MOFs . A 2D fragment of one particular Cd MOF is shown in Figure .…”

Section: Methodsmentioning

confidence: 99%

The Quest for Sulfur‐Containing Photoactive Materials: Molecular Precursors, Structures and Applications

Hennessey

Farràs

2017

ChemPhotoChem

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This Minireview summarises the most relevant work on sulfur‐containing systems and provides direction towards the preparation of novel photoactive materials. This contribution overviews the synthesis of sulfur‐containing organic ligands and metal complexes and their incorporation in surfaces, nanoparticles and frameworks, with the aim to highlight the most relevant applications of such materials. We focus on the use of sulfur‐containing anchoring groups to prepare advanced materials, although examples in which thiols provide decisive properties are also included, for example, stabilization of gold nanoparticles. From these, we provide a series of research directions that we and others are currently exploring to prepare new photoactive materials containing sulfur. These materials will take advantage of the plasmonic properties of thiol‐capped gold and silver nanoparticles and their use to enhance energy‐conversion technologies.

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“…Hence, the use of dicarboxylates as “linkers” to join the organic nodes in the construction of CPs make them efficiently sensitive to external stimuli. − Moreover, it has been found that CPs with metal ions having d 10 configuration (e.g., Zn(II), Cd(II), etc.) are highly conductive and show interesting photochemical and photophysical properties, − presumably due to their flexible nature and ability to produce different molecular geometries with severe distortions. − It has been noted that both structural stability and thermodynamic stability make an impact on their electrical properties. Relatively strong covalent bonding among nodes and linkers provides higher stability and increases the effective efficiency in optoelectronic fields. − Recently, it has been reported that structural transformations by the photodimerization reaction have significant impacts on the electrical conductivity of the species, but until now, there has been no report on how geometrical isomerism ( cis – trans ) in CPs can affect the electronic properties of the complexes. − …”

Section: Introductionmentioning

confidence: 99%

Two Geometrical Isomers of a 1D Coordination Polymer: Rationalization by Theoretical Calculations and Variation of Electrical Properties with the Change in Binding Mode of Dicarboxylate Linker

Dutta

Chakraborty

Drew

et al. 2019

Crystal Growth & Design

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The joining of bimetallic trinuclear nodes, [(CuL1)2Cd] (where H2L1 = N,N′-bis(α-methylsalicylidene)-1,3-propanediamine) by a spacer, 4,4′-benzenedicarboxylic acid (H2L2), produced two isomeric one-dimensional coordination polymers, having molecular formula {[(CuL1)2CdL2]·H2O} n . Structural characterization revealed that, in complex 1, one of the oxygen atoms of each carboxylate group of the linker [L2]2– coordinates only to the central Cd(II) atom of the node in η1 fashion. However, in complex 2, both the oxygen atoms of each carboxylate group coordinate to the metal centers, one to Cd(II) and the other to a terminal Cu(II) via η2 syn–syn bridging mode. Moreover, the two bridging carboxylate O atoms are mutually cis in 1 while these are trans in 2. These differences resulted in the novel isomeric zigzag (or cis) and linear (or trans) chains of the coordination polymer. DFT calculations revealed that complex 2 is thermodynamically more stable than complex 1 by 4.3 kcal/mol in the gas phase. The electrical characterizations, i.e., impedance, capacitance, and current–voltage (I–V) studies, reveal substantive electrical conductivity for both complexes, but the charge transport properties are higher for 2 in comparison to 1. Both the materials exhibit photoswitching properties as they show increased electrical conductivity under illuminated conditions than under dark conditions. However, complex 2 shows significantly higher photosensitivity (P S = 571.50) compared to 1 (P S = 201.40) and thus has more potentiality toward fabrication of photosensitive devices.

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Cadmium and zinc thiolate and selenolate metal–organic frameworks

Cited by 23 publications

References 28 publications

Catalytic CSe Bond Formation under Very Mild Conditions for the Two‐Step, One‐Pot Synthesis of Aryl Selenoacetates

Catalytic CSe Bond Formation under Very Mild Conditions for the Two‐Step, One‐Pot Synthesis of Aryl Selenoacetates

The Quest for Sulfur‐Containing Photoactive Materials: Molecular Precursors, Structures and Applications

Two Geometrical Isomers of a 1D Coordination Polymer: Rationalization by Theoretical Calculations and Variation of Electrical Properties with the Change in Binding Mode of Dicarboxylate Linker

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